IBM 6400 - Model 008 B/W Line-matrix Printer Operator's Manual page 87

Check that the ribbon mask has not
been deformed in such a way as to
block the paper path. If the ribbon mask
is damaged or bent, contact an IBM
service representative.
6
Check the paper path between the
face of the platen and the ribbon
mask for pieces of torn paper and
ribbon lint. Refer to the ribbon path
diagram on the shuttle cover.
7
Reload the paper in the tractors.
8
Lower the forms thickness lever. Set it to
match the paper thickness (refer to the
note on the shuttle cover).
Do not set the forms thickness lever too
tightly; excessive friction can cause paper
jams and ribbon jams with potential for
ribbon damage, smeared ink, or wavy print.
Operator' s Guide
A
note
B
C
NOTE:
Thin Paper = single sheet
Medium Paper = two-part form
Thick Paper = six-part form
clearing paper jams
Ribbon Path Diagram
Thin Paper
Medium Paper
Thick Paper
Tractor
73